About.

How it works

Every game has a daily puzzle that resets at UTC midnight. Everyone gets the same puzzle. You play once, share your result, and that's it for the day.

Each game also has Practice and Endless modes you can play any time. The daily archive lets you replay any past day, but archived plays don't count toward your streak.

No accounts, no ads, no tracking

Your scores live in your browser, not on our servers. No sign-up. No cookies. No advertisers. See Privacy for the details.

Accessibility

Math and words games work with keyboard, screen reader, and any color-vision profile. Number keys 1–4 or home-row a/s/d/f select answers in any multiple-choice round.

Geography games are visual — you find or name countries on a map. Screen-reader support is partial: you can navigate the country buttons, but the map itself isn't described in text. A textual-equivalent variant would be a meaningfully different game and is on the post-v0 list.

Color is never the only signal in feedback. We pair it with position, shape, or icon.

Keyboard shortcuts

Most rounds are multiple choice. For those:

• 1 2 3 4 picks the matching option.
• A S D F does the same thing on the home row.

Fraction Bigger also accepts ← and →, since its two options are positional.

Fraction on the Line:

• ← → or ↑ ↓ moves the marker. Hold Shift for a bigger step.
• Space or Enter locks the placement.

Find the Country: tab through the countries, then Enter or Space to select.

In Practice mode, Space advances past the feedback after a miss.

Vimium and similar key-intercept extensions capture keypresses before any page script sees them. If you use one, add tests.gg to its excluded-URLs list.

Where we are

This is v0 — nine games across three suites. More on the way.